istringstream_members.cc [plain text]
#include <sstream>
#include <testsuite_hooks.h>
void test01()
{
bool test = true;
std::istringstream is01;
const std::string str00;
const std::string str01 = "123";
std::string str02;
const int i01 = 123;
int a,b;
std::ios_base::iostate state1, state2, statefail, stateeof;
statefail = std::ios_base::failbit;
stateeof = std::ios_base::eofbit;
str02 = is01.str();
VERIFY( str00 == str02 );
is01.str(str01);
str02 = is01.str();
VERIFY( str01 == str02 );
state1 = is01.rdstate();
is01 >> a;
state2 = is01.rdstate();
VERIFY( a = i01 );
VERIFY( state1 != state2 );
VERIFY( state2 == stateeof );
is01.str(str01);
is01 >> b;
VERIFY( b != a );
is01.clear();
state1 = is01.rdstate();
is01 >> b;
state2 = is01.rdstate();
VERIFY( b == a );
VERIFY( state1 != state2 );
VERIFY( state2 == stateeof );
#ifdef DEBUG_ASSERT
assert(test);
#endif
}
void
redirect_buffer(std::ios& stream, std::streambuf* new_buf)
{ stream.rdbuf(new_buf); }
std::streambuf*
active_buffer(std::ios& stream)
{ return stream.rdbuf(); }
void test02()
{
bool test = true;
const char* strlit01 = "fuck war";
const char* strlit02 = "two less cars abstract riot crew, critical mass/SF";
const std::string str00;
const std::string str01(strlit01);
std::string str02;
std::stringbuf sbuf(str01);
std::streambuf* pbasebuf0 = &sbuf;
std::istringstream sstrm1;
VERIFY( sstrm1.str() == str00 );
std::stringbuf* const buf1 = sstrm1.rdbuf();
std::streambuf* pbasebuf1 = active_buffer(sstrm1);
redirect_buffer(sstrm1, &sbuf);
std::stringbuf* const buf2 = sstrm1.rdbuf();
std::streambuf* pbasebuf2 = active_buffer(sstrm1);
VERIFY( buf1 == buf2 );
VERIFY( pbasebuf1 != pbasebuf2 );
VERIFY( pbasebuf2 == pbasebuf0 );
VERIFY( sstrm1.str() != str01 );
VERIFY( sstrm1.str() == str00 );
std::stringbuf* psbuf = dynamic_cast<std::stringbuf*>(pbasebuf2);
str02 = psbuf->str();
VERIFY( str02 == str01 );
}
int main()
{
test01();
test02();
return 0;
}